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Spruce, MN · St. Louis County
Right Now
Clear
Water
52°
Wind
5 mph
N
Gusts
9 mph
Pressure
30.04
falling
Forecast - Thu, May 14
High / Low
68° / 38°
Wind
11 mph
gusts 32 mph
Precip
38%
UV
5
Sunrise
10:34 AM
Sunset
1:39 AM
Today Read
St. Mary's LakeWind read
Moderate
11 mph avg
Water read
52°
Cool-water mix
Air range
38° / 68°
today
Precip
38%
watch timing
Today's forecast for St. Mary's Lake has moderate wind, 38F to 68F air temperatures, 38% chance of precipitation, and 52F water.
The planner reads this page's water temp, forecast, fish species, solunar timing, reports, and imagery context so you can decide what to throw, when to go, and when to move.
Today's AI read
Transition temps can split fish between warming edges and deeper comfort zones. Wind is not the main constraint, so timing and presentation can drive the plan. With a weak solunar score, favor stable weather windows.
Uses this lake data
Trip read from the AI planner
FishableFishing Forecast
waning crescent
Major
3:32 PM - 6:02 PM
Minor
8:31 AM - 10:01 AM
Detailed temperature readings across your lake.
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Water Temperature History
Current
53°
May 24
Low
32°
Feb 15
Average
53°
Last 12 Months
Warmest avg: July (73°F)
Coolest avg: February (39°F)
Rapid warming: May → June (+14°F)
Sharpest cooling: August → September (-13°F)
Nearby Lakes
Fishing Forecast
2/5waning crescent
Water at 52°F -- good for cool-water species.
Nearby Lakes
FAQ
St. Mary's Lake covers 234.00 acres (0.37 square miles)
St. Mary's Lake is located in Spruce, St. Louis County, MN. It is accessible to the public for outdoor activities.